21811590

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{257}}^1$

素因数の和:334

約数の個数: 96

約数和(自身を含む): 60854976

約数和(自身を除く): 39043386

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 30, 41, 45, 46, 69, 82, 90, 115, 123, 138, 205, 207, 230, 246, 257, 345, 369, 410, 414, 514, 615, 690, 738, 771, 943, 1035, 1230, 1285, 1542, 1845, 1886, 2070, 2313, 2570, 2829, 3690, 3855, 4626, 4715, 5658, 5911, 7710, 8487, 9430, 10537, 11565, 11822, 14145, 16974, 17733, 21074, 23130, 28290, 29555, 31611, 35466, 42435, 52685, 53199, 59110, 63222, 84870, 88665, 94833, 105370, 106398, 158055, 177330, 189666, 242351, 265995, 316110, 474165, 484702, 531990, 727053, 948330, 1211755, 1454106, 2181159, 2423510, 3635265, 4362318, 7270530, 10905795, 21811590]

約数ペア:

[(1, 21811590), (2, 10905795), (3, 7270530), (5, 4362318), (6, 3635265), (9, 2423510), (10, 2181159), (15, 1454106), (18, 1211755), (23, 948330), (30, 727053), (41, 531990), (45, 484702), (46, 474165), (69, 316110), (82, 265995), (90, 242351), (115, 189666), (123, 177330), (138, 158055), (205, 106398), (207, 105370), (230, 94833), (246, 88665), (257, 84870), (345, 63222), (369, 59110), (410, 53199), (414, 52685), (514, 42435), (615, 35466), (690, 31611), (738, 29555), (771, 28290), (943, 23130), (1035, 21074), (1230, 17733), (1285, 16974), (1542, 14145), (1845, 11822), (1886, 11565), (2070, 10537), (2313, 9430), (2570, 8487), (2829, 7710), (3690, 5911), (3855, 5658), (4626, 4715)]