21826980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1019}}^1$

素因数の和:1058

約数の個数: 144

約数和(自身を含む): 80196480

約数和(自身を除く): 58369500

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 17, 18, 20, 21, 28, 30, 34, 35, 36, 42, 45, 51, 60, 63, 68, 70, 84, 85, 90, 102, 105, 119, 126, 140, 153, 170, 180, 204, 210, 238, 252, 255, 306, 315, 340, 357, 420, 476, 510, 595, 612, 630, 714, 765, 1019, 1020, 1071, 1190, 1260, 1428, 1530, 1785, 2038, 2142, 2380, 3057, 3060, 3570, 4076, 4284, 5095, 5355, 6114, 7133, 7140, 9171, 10190, 10710, 12228, 14266, 15285, 17323, 18342, 20380, 21399, 21420, 28532, 30570, 34646, 35665, 36684, 42798, 45855, 51969, 61140, 64197, 69292, 71330, 85596, 86615, 91710, 103938, 106995, 121261, 128394, 142660, 155907, 173230, 183420, 207876, 213990, 242522, 256788, 259845, 311814, 320985, 346460, 363783, 427980, 485044, 519690, 606305, 623628, 641970, 727566, 779535, 1039380, 1091349, 1212610, 1283940, 1455132, 1559070, 1818915, 2182698, 2425220, 3118140, 3637830, 4365396, 5456745, 7275660, 10913490, 21826980]

約数ペア:

[(1, 21826980), (2, 10913490), (3, 7275660), (4, 5456745), (5, 4365396), (6, 3637830), (7, 3118140), (9, 2425220), (10, 2182698), (12, 1818915), (14, 1559070), (15, 1455132), (17, 1283940), (18, 1212610), (20, 1091349), (21, 1039380), (28, 779535), (30, 727566), (34, 641970), (35, 623628), (36, 606305), (42, 519690), (45, 485044), (51, 427980), (60, 363783), (63, 346460), (68, 320985), (70, 311814), (84, 259845), (85, 256788), (90, 242522), (102, 213990), (105, 207876), (119, 183420), (126, 173230), (140, 155907), (153, 142660), (170, 128394), (180, 121261), (204, 106995), (210, 103938), (238, 91710), (252, 86615), (255, 85596), (306, 71330), (315, 69292), (340, 64197), (357, 61140), (420, 51969), (476, 45855), (510, 42798), (595, 36684), (612, 35665), (630, 34646), (714, 30570), (765, 28532), (1019, 21420), (1020, 21399), (1071, 20380), (1190, 18342), (1260, 17323), (1428, 15285), (1530, 14266), (1785, 12228), (2038, 10710), (2142, 10190), (2380, 9171), (3057, 7140), (3060, 7133), (3570, 6114), (4076, 5355), (4284, 5095)]