21677730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{353}}^1$

素因数の和:475

約数の個数: 64

約数和(自身を含む): 55054080

約数和(自身を除く): 33376350

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 89, 115, 138, 178, 230, 267, 345, 353, 445, 534, 690, 706, 890, 1059, 1335, 1765, 2047, 2118, 2670, 3530, 4094, 5295, 6141, 8119, 10235, 10590, 12282, 16238, 20470, 24357, 30705, 31417, 40595, 48714, 61410, 62834, 81190, 94251, 121785, 157085, 188502, 243570, 314170, 471255, 722591, 942510, 1445182, 2167773, 3612955, 4335546, 7225910, 10838865, 21677730]

約数ペア:

[(1, 21677730), (2, 10838865), (3, 7225910), (5, 4335546), (6, 3612955), (10, 2167773), (15, 1445182), (23, 942510), (30, 722591), (46, 471255), (69, 314170), (89, 243570), (115, 188502), (138, 157085), (178, 121785), (230, 94251), (267, 81190), (345, 62834), (353, 61410), (445, 48714), (534, 40595), (690, 31417), (706, 30705), (890, 24357), (1059, 20470), (1335, 16238), (1765, 12282), (2047, 10590), (2118, 10235), (2670, 8119), (3530, 6141), (4094, 5295)]