21586680

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{983}}^1$

素因数の和:1061

約数の個数: 96

約数和(自身を含む): 71379360

約数和(自身を除く): 49792680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 61, 72, 90, 120, 122, 180, 183, 244, 305, 360, 366, 488, 549, 610, 732, 915, 983, 1098, 1220, 1464, 1830, 1966, 2196, 2440, 2745, 2949, 3660, 3932, 4392, 4915, 5490, 5898, 7320, 7864, 8847, 9830, 10980, 11796, 14745, 17694, 19660, 21960, 23592, 29490, 35388, 39320, 44235, 58980, 59963, 70776, 88470, 117960, 119926, 176940, 179889, 239852, 299815, 353880, 359778, 479704, 539667, 599630, 719556, 899445, 1079334, 1199260, 1439112, 1798890, 2158668, 2398520, 2698335, 3597780, 4317336, 5396670, 7195560, 10793340, 21586680]

約数ペア:

[(1, 21586680), (2, 10793340), (3, 7195560), (4, 5396670), (5, 4317336), (6, 3597780), (8, 2698335), (9, 2398520), (10, 2158668), (12, 1798890), (15, 1439112), (18, 1199260), (20, 1079334), (24, 899445), (30, 719556), (36, 599630), (40, 539667), (45, 479704), (60, 359778), (61, 353880), (72, 299815), (90, 239852), (120, 179889), (122, 176940), (180, 119926), (183, 117960), (244, 88470), (305, 70776), (360, 59963), (366, 58980), (488, 44235), (549, 39320), (610, 35388), (732, 29490), (915, 23592), (983, 21960), (1098, 19660), (1220, 17694), (1464, 14745), (1830, 11796), (1966, 10980), (2196, 9830), (2440, 8847), (2745, 7864), (2949, 7320), (3660, 5898), (3932, 5490), (4392, 4915)]