21630570

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1499}}^1$

素因数の和:1559

約数の個数: 64

約数和(自身を含む): 57456000

約数和(自身を除く): 35825430

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 37, 39, 65, 74, 78, 111, 130, 185, 195, 222, 370, 390, 481, 555, 962, 1110, 1443, 1499, 2405, 2886, 2998, 4497, 4810, 7215, 7495, 8994, 14430, 14990, 19487, 22485, 38974, 44970, 55463, 58461, 97435, 110926, 116922, 166389, 194870, 277315, 292305, 332778, 554630, 584610, 721019, 831945, 1442038, 1663890, 2163057, 3605095, 4326114, 7210190, 10815285, 21630570]

約数ペア:

[(1, 21630570), (2, 10815285), (3, 7210190), (5, 4326114), (6, 3605095), (10, 2163057), (13, 1663890), (15, 1442038), (26, 831945), (30, 721019), (37, 584610), (39, 554630), (65, 332778), (74, 292305), (78, 277315), (111, 194870), (130, 166389), (185, 116922), (195, 110926), (222, 97435), (370, 58461), (390, 55463), (481, 44970), (555, 38974), (962, 22485), (1110, 19487), (1443, 14990), (1499, 14430), (2405, 8994), (2886, 7495), (2998, 7215), (4497, 4810)]