21734720

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{313}}^1$

素因数の和:368

約数の個数: 112

約数和(自身を含む): 61252608

約数和(自身を除く): 39517888

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 112, 124, 140, 155, 160, 217, 224, 248, 280, 310, 313, 320, 434, 448, 496, 560, 620, 626, 868, 992, 1085, 1120, 1240, 1252, 1565, 1736, 1984, 2170, 2191, 2240, 2480, 2504, 3130, 3472, 4340, 4382, 4960, 5008, 6260, 6944, 8680, 8764, 9703, 9920, 10016, 10955, 12520, 13888, 17360, 17528, 19406, 20032, 21910, 25040, 34720, 35056, 38812, 43820, 48515, 50080, 67921, 69440, 70112, 77624, 87640, 97030, 100160, 135842, 140224, 155248, 175280, 194060, 271684, 310496, 339605, 350560, 388120, 543368, 620992, 679210, 701120, 776240, 1086736, 1358420, 1552480, 2173472, 2716840, 3104960, 4346944, 5433680, 10867360, 21734720]

約数ペア:

[(1, 21734720), (2, 10867360), (4, 5433680), (5, 4346944), (7, 3104960), (8, 2716840), (10, 2173472), (14, 1552480), (16, 1358420), (20, 1086736), (28, 776240), (31, 701120), (32, 679210), (35, 620992), (40, 543368), (56, 388120), (62, 350560), (64, 339605), (70, 310496), (80, 271684), (112, 194060), (124, 175280), (140, 155248), (155, 140224), (160, 135842), (217, 100160), (224, 97030), (248, 87640), (280, 77624), (310, 70112), (313, 69440), (320, 67921), (434, 50080), (448, 48515), (496, 43820), (560, 38812), (620, 35056), (626, 34720), (868, 25040), (992, 21910), (1085, 20032), (1120, 19406), (1240, 17528), (1252, 17360), (1565, 13888), (1736, 12520), (1984, 10955), (2170, 10016), (2191, 9920), (2240, 9703), (2480, 8764), (2504, 8680), (3130, 6944), (3472, 6260), (4340, 5008), (4382, 4960)]