20918364

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{41}}^2\times {\mathrm{61}}^1$

素因数の和:167

約数の個数: 72

約数和(自身を含む): 53840304

約数和(自身を除く): 32921940

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 41, 51, 61, 68, 82, 102, 122, 123, 164, 183, 204, 244, 246, 366, 492, 697, 732, 1037, 1394, 1681, 2074, 2091, 2501, 2788, 3111, 3362, 4148, 4182, 5002, 5043, 6222, 6724, 7503, 8364, 10004, 10086, 12444, 15006, 20172, 28577, 30012, 42517, 57154, 85034, 85731, 102541, 114308, 127551, 170068, 171462, 205082, 255102, 307623, 342924, 410164, 510204, 615246, 1230492, 1743197, 3486394, 5229591, 6972788, 10459182, 20918364]

約数ペア:

[(1, 20918364), (2, 10459182), (3, 6972788), (4, 5229591), (6, 3486394), (12, 1743197), (17, 1230492), (34, 615246), (41, 510204), (51, 410164), (61, 342924), (68, 307623), (82, 255102), (102, 205082), (122, 171462), (123, 170068), (164, 127551), (183, 114308), (204, 102541), (244, 85731), (246, 85034), (366, 57154), (492, 42517), (697, 30012), (732, 28577), (1037, 20172), (1394, 15006), (1681, 12444), (2074, 10086), (2091, 10004), (2501, 8364), (2788, 7503), (3111, 6724), (3362, 6222), (4148, 5043), (4182, 5002)]