21998535

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{3049}}^1$

素因数の和:3107

約数の個数: 32

約数和(自身を含む): 38942400

約数和(自身を除く): 16943865

約数列:

[1, 3, 5, 13, 15, 37, 39, 65, 111, 185, 195, 481, 555, 1443, 2405, 3049, 7215, 9147, 15245, 39637, 45735, 112813, 118911, 198185, 338439, 564065, 594555, 1466569, 1692195, 4399707, 7332845, 21998535]

約数ペア:

[(1, 21998535), (3, 7332845), (5, 4399707), (13, 1692195), (15, 1466569), (37, 594555), (39, 564065), (65, 338439), (111, 198185), (185, 118911), (195, 112813), (481, 45735), (555, 39637), (1443, 15245), (2405, 9147), (3049, 7215)]