21132312525

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{59557}}^1$

素因数の和:59675

約数の個数: 72

約数和(自身を含む): 40323148320

約数和(自身を除く): 19190835795

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 57, 75, 83, 95, 171, 225, 249, 285, 415, 475, 747, 855, 1245, 1425, 1577, 2075, 3735, 4275, 4731, 6225, 7885, 14193, 18675, 23655, 39425, 59557, 70965, 118275, 178671, 297785, 354825, 536013, 893355, 1131583, 1488925, 2680065, 3394749, 4466775, 4943231, 5657915, 10184247, 13400325, 14829693, 16973745, 24716155, 28289575, 44489079, 50921235, 74148465, 84868725, 93921389, 123580775, 222445395, 254606175, 281764167, 370742325, 469606945, 845292501, 1112226975, 1408820835, 2348034725, 4226462505, 7044104175, 21132312525]

約数ペア:

[(1, 21132312525), (3, 7044104175), (5, 4226462505), (9, 2348034725), (15, 1408820835), (19, 1112226975), (25, 845292501), (45, 469606945), (57, 370742325), (75, 281764167), (83, 254606175), (95, 222445395), (171, 123580775), (225, 93921389), (249, 84868725), (285, 74148465), (415, 50921235), (475, 44489079), (747, 28289575), (855, 24716155), (1245, 16973745), (1425, 14829693), (1577, 13400325), (2075, 10184247), (3735, 5657915), (4275, 4943231), (4731, 4466775), (6225, 3394749), (7885, 2680065), (14193, 1488925), (18675, 1131583), (23655, 893355), (39425, 536013), (59557, 354825), (70965, 297785), (118275, 178671)]