18929925

素因数分解:

$3^2\times 5^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{101}}^1$

素因数の和:148

約数の個数: 108

約数和(自身を含む): 42174756

約数和(自身を除く): 23244831

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 25, 35, 45, 49, 51, 63, 75, 85, 101, 105, 119, 147, 153, 175, 225, 245, 255, 303, 315, 357, 425, 441, 505, 525, 595, 707, 735, 765, 833, 909, 1071, 1225, 1275, 1515, 1575, 1717, 1785, 2121, 2205, 2499, 2525, 2975, 3535, 3675, 3825, 4165, 4545, 4949, 5151, 5355, 6363, 7497, 7575, 8585, 8925, 10605, 11025, 12019, 12495, 14847, 15453, 17675, 20825, 22725, 24745, 25755, 26775, 31815, 36057, 37485, 42925, 44541, 53025, 60095, 62475, 74235, 77265, 84133, 108171, 123725, 128775, 159075, 180285, 187425, 222705, 252399, 300475, 371175, 386325, 420665, 540855, 757197, 901425, 1113525, 1261995, 2103325, 2704275, 3785985, 6309975, 18929925]

約数ペア:

[(1, 18929925), (3, 6309975), (5, 3785985), (7, 2704275), (9, 2103325), (15, 1261995), (17, 1113525), (21, 901425), (25, 757197), (35, 540855), (45, 420665), (49, 386325), (51, 371175), (63, 300475), (75, 252399), (85, 222705), (101, 187425), (105, 180285), (119, 159075), (147, 128775), (153, 123725), (175, 108171), (225, 84133), (245, 77265), (255, 74235), (303, 62475), (315, 60095), (357, 53025), (425, 44541), (441, 42925), (505, 37485), (525, 36057), (595, 31815), (707, 26775), (735, 25755), (765, 24745), (833, 22725), (909, 20825), (1071, 17675), (1225, 15453), (1275, 14847), (1515, 12495), (1575, 12019), (1717, 11025), (1785, 10605), (2121, 8925), (2205, 8585), (2499, 7575), (2525, 7497), (2975, 6363), (3535, 5355), (3675, 5151), (3825, 4949), (4165, 4545)]