21259830

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{179}}^1$

素因数の和:333

約数の個数: 64

約数和(自身を含む): 53187840

約数和(自身を除く): 31928010

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 37, 74, 107, 111, 179, 185, 214, 222, 321, 358, 370, 535, 537, 555, 642, 895, 1070, 1074, 1110, 1605, 1790, 2685, 3210, 3959, 5370, 6623, 7918, 11877, 13246, 19153, 19795, 19869, 23754, 33115, 38306, 39590, 39738, 57459, 59385, 66230, 95765, 99345, 114918, 118770, 191530, 198690, 287295, 574590, 708661, 1417322, 2125983, 3543305, 4251966, 7086610, 10629915, 21259830]

約数ペア:

[(1, 21259830), (2, 10629915), (3, 7086610), (5, 4251966), (6, 3543305), (10, 2125983), (15, 1417322), (30, 708661), (37, 574590), (74, 287295), (107, 198690), (111, 191530), (179, 118770), (185, 114918), (214, 99345), (222, 95765), (321, 66230), (358, 59385), (370, 57459), (535, 39738), (537, 39590), (555, 38306), (642, 33115), (895, 23754), (1070, 19869), (1074, 19795), (1110, 19153), (1605, 13246), (1790, 11877), (2685, 7918), (3210, 6623), (3959, 5370)]