21796380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{419}}^1$

素因数の和:468

約数の個数: 108

約数和(自身を含む): 70401240

約数和(自身を除く): 48604860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 170, 180, 204, 255, 289, 306, 340, 419, 510, 578, 612, 765, 838, 867, 1020, 1156, 1257, 1445, 1530, 1676, 1734, 2095, 2514, 2601, 2890, 3060, 3468, 3771, 4190, 4335, 5028, 5202, 5780, 6285, 7123, 7542, 8380, 8670, 10404, 12570, 13005, 14246, 15084, 17340, 18855, 21369, 25140, 26010, 28492, 35615, 37710, 42738, 52020, 64107, 71230, 75420, 85476, 106845, 121091, 128214, 142460, 213690, 242182, 256428, 320535, 363273, 427380, 484364, 605455, 641070, 726546, 1089819, 1210910, 1282140, 1453092, 1816365, 2179638, 2421820, 3632730, 4359276, 5449095, 7265460, 10898190, 21796380]

約数ペア:

[(1, 21796380), (2, 10898190), (3, 7265460), (4, 5449095), (5, 4359276), (6, 3632730), (9, 2421820), (10, 2179638), (12, 1816365), (15, 1453092), (17, 1282140), (18, 1210910), (20, 1089819), (30, 726546), (34, 641070), (36, 605455), (45, 484364), (51, 427380), (60, 363273), (68, 320535), (85, 256428), (90, 242182), (102, 213690), (153, 142460), (170, 128214), (180, 121091), (204, 106845), (255, 85476), (289, 75420), (306, 71230), (340, 64107), (419, 52020), (510, 42738), (578, 37710), (612, 35615), (765, 28492), (838, 26010), (867, 25140), (1020, 21369), (1156, 18855), (1257, 17340), (1445, 15084), (1530, 14246), (1676, 13005), (1734, 12570), (2095, 10404), (2514, 8670), (2601, 8380), (2890, 7542), (3060, 7123), (3468, 6285), (3771, 5780), (4190, 5202), (4335, 5028)]