21341175

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1$

素因数の和:248

約数の個数: 48

約数和(自身を含む): 37235712

約数和(自身を除く): 15894537

約数列:

[1, 3, 5, 15, 25, 31, 67, 75, 93, 137, 155, 201, 335, 411, 465, 685, 775, 1005, 1675, 2055, 2077, 2325, 3425, 4247, 5025, 6231, 9179, 10275, 10385, 12741, 21235, 27537, 31155, 45895, 51925, 63705, 106175, 137685, 155775, 229475, 284549, 318525, 688425, 853647, 1422745, 4268235, 7113725, 21341175]

約数ペア:

[(1, 21341175), (3, 7113725), (5, 4268235), (15, 1422745), (25, 853647), (31, 688425), (67, 318525), (75, 284549), (93, 229475), (137, 155775), (155, 137685), (201, 106175), (335, 63705), (411, 51925), (465, 45895), (685, 31155), (775, 27537), (1005, 21235), (1675, 12741), (2055, 10385), (2077, 10275), (2325, 9179), (3425, 6231), (4247, 5025)]