21445830

素因数分解:

$2^1\times 3^3\times 5^1\times 7^2\times {\mathrm{1621}}^1$

素因数の和:1651

約数の個数: 96

約数和(自身を含む): 66566880

約数和(自身を除く): 45121050

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 49, 54, 63, 70, 90, 98, 105, 126, 135, 147, 189, 210, 245, 270, 294, 315, 378, 441, 490, 630, 735, 882, 945, 1323, 1470, 1621, 1890, 2205, 2646, 3242, 4410, 4863, 6615, 8105, 9726, 11347, 13230, 14589, 16210, 22694, 24315, 29178, 34041, 43767, 48630, 56735, 68082, 72945, 79429, 87534, 102123, 113470, 145890, 158858, 170205, 204246, 218835, 238287, 306369, 340410, 397145, 437670, 476574, 510615, 612738, 714861, 794290, 1021230, 1191435, 1429722, 1531845, 2144583, 2382870, 3063690, 3574305, 4289166, 7148610, 10722915, 21445830]

約数ペア:

[(1, 21445830), (2, 10722915), (3, 7148610), (5, 4289166), (6, 3574305), (7, 3063690), (9, 2382870), (10, 2144583), (14, 1531845), (15, 1429722), (18, 1191435), (21, 1021230), (27, 794290), (30, 714861), (35, 612738), (42, 510615), (45, 476574), (49, 437670), (54, 397145), (63, 340410), (70, 306369), (90, 238287), (98, 218835), (105, 204246), (126, 170205), (135, 158858), (147, 145890), (189, 113470), (210, 102123), (245, 87534), (270, 79429), (294, 72945), (315, 68082), (378, 56735), (441, 48630), (490, 43767), (630, 34041), (735, 29178), (882, 24315), (945, 22694), (1323, 16210), (1470, 14589), (1621, 13230), (1890, 11347), (2205, 9726), (2646, 8105), (3242, 6615), (4410, 4863)]