19725948

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{457}}^1$

素因数の和:587

約数の個数: 72

約数和(自身を含む): 55014960

約数和(自身を除く): 35289012

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 109, 132, 198, 218, 327, 396, 436, 457, 654, 914, 981, 1199, 1308, 1371, 1828, 1962, 2398, 2742, 3597, 3924, 4113, 4796, 5027, 5484, 7194, 8226, 10054, 10791, 14388, 15081, 16452, 20108, 21582, 30162, 43164, 45243, 49813, 60324, 90486, 99626, 149439, 180972, 199252, 298878, 448317, 547943, 597756, 896634, 1095886, 1643829, 1793268, 2191772, 3287658, 4931487, 6575316, 9862974, 19725948]

約数ペア:

[(1, 19725948), (2, 9862974), (3, 6575316), (4, 4931487), (6, 3287658), (9, 2191772), (11, 1793268), (12, 1643829), (18, 1095886), (22, 896634), (33, 597756), (36, 547943), (44, 448317), (66, 298878), (99, 199252), (109, 180972), (132, 149439), (198, 99626), (218, 90486), (327, 60324), (396, 49813), (436, 45243), (457, 43164), (654, 30162), (914, 21582), (981, 20108), (1199, 16452), (1308, 15081), (1371, 14388), (1828, 10791), (1962, 10054), (2398, 8226), (2742, 7194), (3597, 5484), (3924, 5027), (4113, 4796)]