18221025

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{461}}^1$

素因数の和:522

約数の個数: 48

約数和(自身を含む): 32997888

約数和(自身を除く): 14776863

約数列:

[1, 3, 5, 15, 17, 25, 31, 51, 75, 85, 93, 155, 255, 425, 461, 465, 527, 775, 1275, 1383, 1581, 2305, 2325, 2635, 6915, 7837, 7905, 11525, 13175, 14291, 23511, 34575, 39185, 39525, 42873, 71455, 117555, 195925, 214365, 242947, 357275, 587775, 728841, 1071825, 1214735, 3644205, 6073675, 18221025]

約数ペア:

[(1, 18221025), (3, 6073675), (5, 3644205), (15, 1214735), (17, 1071825), (25, 728841), (31, 587775), (51, 357275), (75, 242947), (85, 214365), (93, 195925), (155, 117555), (255, 71455), (425, 42873), (461, 39525), (465, 39185), (527, 34575), (775, 23511), (1275, 14291), (1383, 13175), (1581, 11525), (2305, 7905), (2325, 7837), (2635, 6915)]