21920490

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4273}}^1$

素因数の和:4308

約数の個数: 64

約数和(自身を含む): 61545600

約数和(自身を除く): 39625110

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 27, 30, 38, 45, 54, 57, 90, 95, 114, 135, 171, 190, 270, 285, 342, 513, 570, 855, 1026, 1710, 2565, 4273, 5130, 8546, 12819, 21365, 25638, 38457, 42730, 64095, 76914, 81187, 115371, 128190, 162374, 192285, 230742, 243561, 384570, 405935, 487122, 576855, 730683, 811870, 1153710, 1217805, 1461366, 2192049, 2435610, 3653415, 4384098, 7306830, 10960245, 21920490]

約数ペア:

[(1, 21920490), (2, 10960245), (3, 7306830), (5, 4384098), (6, 3653415), (9, 2435610), (10, 2192049), (15, 1461366), (18, 1217805), (19, 1153710), (27, 811870), (30, 730683), (38, 576855), (45, 487122), (54, 405935), (57, 384570), (90, 243561), (95, 230742), (114, 192285), (135, 162374), (171, 128190), (190, 115371), (270, 81187), (285, 76914), (342, 64095), (513, 42730), (570, 38457), (855, 25638), (1026, 21365), (1710, 12819), (2565, 8546), (4273, 5130)]