21249150

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{641}}^1$

素因数の和:686

約数の個数: 96

約数和(自身を含む): 60183648

約数和(自身を除く): 38934498

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 17, 25, 26, 30, 34, 39, 50, 51, 65, 75, 78, 85, 102, 130, 150, 170, 195, 221, 255, 325, 390, 425, 442, 510, 641, 650, 663, 850, 975, 1105, 1275, 1282, 1326, 1923, 1950, 2210, 2550, 3205, 3315, 3846, 5525, 6410, 6630, 8333, 9615, 10897, 11050, 16025, 16575, 16666, 19230, 21794, 24999, 32050, 32691, 33150, 41665, 48075, 49998, 54485, 65382, 83330, 96150, 108970, 124995, 141661, 163455, 208325, 249990, 272425, 283322, 326910, 416650, 424983, 544850, 624975, 708305, 817275, 849966, 1249950, 1416610, 1634550, 2124915, 3541525, 4249830, 7083050, 10624575, 21249150]

約数ペア:

[(1, 21249150), (2, 10624575), (3, 7083050), (5, 4249830), (6, 3541525), (10, 2124915), (13, 1634550), (15, 1416610), (17, 1249950), (25, 849966), (26, 817275), (30, 708305), (34, 624975), (39, 544850), (50, 424983), (51, 416650), (65, 326910), (75, 283322), (78, 272425), (85, 249990), (102, 208325), (130, 163455), (150, 141661), (170, 124995), (195, 108970), (221, 96150), (255, 83330), (325, 65382), (390, 54485), (425, 49998), (442, 48075), (510, 41665), (641, 33150), (650, 32691), (663, 32050), (850, 24999), (975, 21794), (1105, 19230), (1275, 16666), (1282, 16575), (1326, 16025), (1923, 11050), (1950, 10897), (2210, 9615), (2550, 8333), (3205, 6630), (3315, 6410), (3846, 5525)]