21891534

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{3919}}^1$

素因数の和:3957

約数の個数: 48

約数和(自身を含む): 53625600

約数和(自身を除く): 31734066

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 49, 57, 98, 114, 133, 147, 266, 294, 399, 798, 931, 1862, 2793, 3919, 5586, 7838, 11757, 23514, 27433, 54866, 74461, 82299, 148922, 164598, 192031, 223383, 384062, 446766, 521227, 576093, 1042454, 1152186, 1563681, 3127362, 3648589, 7297178, 10945767, 21891534]

約数ペア:

[(1, 21891534), (2, 10945767), (3, 7297178), (6, 3648589), (7, 3127362), (14, 1563681), (19, 1152186), (21, 1042454), (38, 576093), (42, 521227), (49, 446766), (57, 384062), (98, 223383), (114, 192031), (133, 164598), (147, 148922), (266, 82299), (294, 74461), (399, 54866), (798, 27433), (931, 23514), (1862, 11757), (2793, 7838), (3919, 5586)]