21470048

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{647}}^1$

素因数の和:735

約数の個数: 48

約数和(自身を含む): 45559584

約数和(自身を除く): 24089536

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 61, 68, 122, 136, 244, 272, 488, 544, 647, 976, 1037, 1294, 1952, 2074, 2588, 4148, 5176, 8296, 10352, 10999, 16592, 20704, 21998, 33184, 39467, 43996, 78934, 87992, 157868, 175984, 315736, 351968, 631472, 670939, 1262944, 1341878, 2683756, 5367512, 10735024, 21470048]

約数ペア:

[(1, 21470048), (2, 10735024), (4, 5367512), (8, 2683756), (16, 1341878), (17, 1262944), (32, 670939), (34, 631472), (61, 351968), (68, 315736), (122, 175984), (136, 157868), (244, 87992), (272, 78934), (488, 43996), (544, 39467), (647, 33184), (976, 21998), (1037, 20704), (1294, 16592), (1952, 10999), (2074, 10352), (2588, 8296), (4148, 5176)]