20215446876

素因数分解:

$2^2\times 3^2\times {\mathrm{191}}^1\times {\mathrm{821}}^1\times {\mathrm{3581}}^1$

素因数の和:4603

約数の個数: 72

約数和(自身を含む): 51444626688

約数和(自身を除く): 31229179812

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 191, 382, 573, 764, 821, 1146, 1642, 1719, 2292, 2463, 3284, 3438, 3581, 4926, 6876, 7162, 7389, 9852, 10743, 14324, 14778, 21486, 29556, 32229, 42972, 64458, 128916, 156811, 313622, 470433, 627244, 683971, 940866, 1367942, 1411299, 1881732, 2051913, 2735884, 2822598, 2940001, 4103826, 5645196, 5880002, 6155739, 8207652, 8820003, 11760004, 12311478, 17640006, 24622956, 26460009, 35280012, 52920018, 105840036, 561540191, 1123080382, 1684620573, 2246160764, 3369241146, 5053861719, 6738482292, 10107723438, 20215446876]

約数ペア:

[(1, 20215446876), (2, 10107723438), (3, 6738482292), (4, 5053861719), (6, 3369241146), (9, 2246160764), (12, 1684620573), (18, 1123080382), (36, 561540191), (191, 105840036), (382, 52920018), (573, 35280012), (764, 26460009), (821, 24622956), (1146, 17640006), (1642, 12311478), (1719, 11760004), (2292, 8820003), (2463, 8207652), (3284, 6155739), (3438, 5880002), (3581, 5645196), (4926, 4103826), (6876, 2940001), (7162, 2822598), (7389, 2735884), (9852, 2051913), (10743, 1881732), (14324, 1411299), (14778, 1367942), (21486, 940866), (29556, 683971), (32229, 627244), (42972, 470433), (64458, 313622), (128916, 156811)]