21880451646

素因数分解:

$2^1\times 3^3\times {\mathrm{37}}^1\times {\mathrm{557}}^1\times {\mathrm{19661}}^1$

素因数の和:20266

約数の個数: 64

約数和(自身を含む): 50029565760

約数和(自身を除く): 28149114114

約数列:

[1, 2, 3, 6, 9, 18, 27, 37, 54, 74, 111, 222, 333, 557, 666, 999, 1114, 1671, 1998, 3342, 5013, 10026, 15039, 19661, 20609, 30078, 39322, 41218, 58983, 61827, 117966, 123654, 176949, 185481, 353898, 370962, 530847, 556443, 727457, 1061694, 1112886, 1454914, 2182371, 4364742, 6547113, 10951177, 13094226, 19641339, 21902354, 32853531, 39282678, 65707062, 98560593, 197121186, 295681779, 405193549, 591363558, 810387098, 1215580647, 2431161294, 3646741941, 7293483882, 10940225823, 21880451646]

約数ペア:

[(1, 21880451646), (2, 10940225823), (3, 7293483882), (6, 3646741941), (9, 2431161294), (18, 1215580647), (27, 810387098), (37, 591363558), (54, 405193549), (74, 295681779), (111, 197121186), (222, 98560593), (333, 65707062), (557, 39282678), (666, 32853531), (999, 21902354), (1114, 19641339), (1671, 13094226), (1998, 10951177), (3342, 6547113), (5013, 4364742), (10026, 2182371), (15039, 1454914), (19661, 1112886), (20609, 1061694), (30078, 727457), (39322, 556443), (41218, 530847), (58983, 370962), (61827, 353898), (117966, 185481), (123654, 176949)]