21104850

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1$

素因数の和:244

約数の個数: 96

約数和(自身を含む): 57496320

約数和(自身を除く): 36391470

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 79, 130, 137, 150, 158, 195, 237, 274, 325, 390, 395, 411, 474, 650, 685, 790, 822, 975, 1027, 1185, 1370, 1781, 1950, 1975, 2054, 2055, 2370, 3081, 3425, 3562, 3950, 4110, 5135, 5343, 5925, 6162, 6850, 8905, 10270, 10275, 10686, 10823, 11850, 15405, 17810, 20550, 21646, 25675, 26715, 30810, 32469, 44525, 51350, 53430, 54115, 64938, 77025, 89050, 108230, 133575, 140699, 154050, 162345, 267150, 270575, 281398, 324690, 422097, 541150, 703495, 811725, 844194, 1406990, 1623450, 2110485, 3517475, 4220970, 7034950, 10552425, 21104850]

約数ペア:

[(1, 21104850), (2, 10552425), (3, 7034950), (5, 4220970), (6, 3517475), (10, 2110485), (13, 1623450), (15, 1406990), (25, 844194), (26, 811725), (30, 703495), (39, 541150), (50, 422097), (65, 324690), (75, 281398), (78, 270575), (79, 267150), (130, 162345), (137, 154050), (150, 140699), (158, 133575), (195, 108230), (237, 89050), (274, 77025), (325, 64938), (390, 54115), (395, 53430), (411, 51350), (474, 44525), (650, 32469), (685, 30810), (790, 26715), (822, 25675), (975, 21646), (1027, 20550), (1185, 17810), (1370, 15405), (1781, 11850), (1950, 10823), (1975, 10686), (2054, 10275), (2055, 10270), (2370, 8905), (3081, 6850), (3425, 6162), (3562, 5925), (3950, 5343), (4110, 5135)]