21403045980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1090879}}^1$

素因数の和:1091003

約数の個数: 72

約数和(自身を含む): 65518252800

約数和(自身を除く): 44115206820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 109, 180, 218, 327, 436, 545, 654, 981, 1090, 1308, 1635, 1962, 2180, 3270, 3924, 4905, 6540, 9810, 19620, 1090879, 2181758, 3272637, 4363516, 5454395, 6545274, 9817911, 10908790, 13090548, 16363185, 19635822, 21817580, 32726370, 39271644, 49089555, 65452740, 98179110, 118905811, 196358220, 237811622, 356717433, 475623244, 594529055, 713434866, 1070152299, 1189058110, 1426869732, 1783587165, 2140304598, 2378116220, 3567174330, 4280609196, 5350761495, 7134348660, 10701522990, 21403045980]

約数ペア:

[(1, 21403045980), (2, 10701522990), (3, 7134348660), (4, 5350761495), (5, 4280609196), (6, 3567174330), (9, 2378116220), (10, 2140304598), (12, 1783587165), (15, 1426869732), (18, 1189058110), (20, 1070152299), (30, 713434866), (36, 594529055), (45, 475623244), (60, 356717433), (90, 237811622), (109, 196358220), (180, 118905811), (218, 98179110), (327, 65452740), (436, 49089555), (545, 39271644), (654, 32726370), (981, 21817580), (1090, 19635822), (1308, 16363185), (1635, 13090548), (1962, 10908790), (2180, 9817911), (3270, 6545274), (3924, 5454395), (4905, 4363516), (6540, 3272637), (9810, 2181758), (19620, 1090879)]