21568380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:227

約数の個数: 96

約数和(自身を含む): 62995968

約数和(自身を除く): 41427588

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 61, 71, 83, 122, 142, 166, 183, 213, 244, 249, 284, 305, 332, 355, 366, 415, 426, 498, 610, 710, 732, 830, 852, 915, 996, 1065, 1220, 1245, 1420, 1660, 1830, 2130, 2490, 3660, 4260, 4331, 4980, 5063, 5893, 8662, 10126, 11786, 12993, 15189, 17324, 17679, 20252, 21655, 23572, 25315, 25986, 29465, 30378, 35358, 43310, 50630, 51972, 58930, 60756, 64965, 70716, 75945, 86620, 88395, 101260, 117860, 129930, 151890, 176790, 259860, 303780, 353580, 359473, 718946, 1078419, 1437892, 1797365, 2156838, 3594730, 4313676, 5392095, 7189460, 10784190, 21568380]

約数ペア:

[(1, 21568380), (2, 10784190), (3, 7189460), (4, 5392095), (5, 4313676), (6, 3594730), (10, 2156838), (12, 1797365), (15, 1437892), (20, 1078419), (30, 718946), (60, 359473), (61, 353580), (71, 303780), (83, 259860), (122, 176790), (142, 151890), (166, 129930), (183, 117860), (213, 101260), (244, 88395), (249, 86620), (284, 75945), (305, 70716), (332, 64965), (355, 60756), (366, 58930), (415, 51972), (426, 50630), (498, 43310), (610, 35358), (710, 30378), (732, 29465), (830, 25986), (852, 25315), (915, 23572), (996, 21655), (1065, 20252), (1220, 17679), (1245, 17324), (1420, 15189), (1660, 12993), (1830, 11786), (2130, 10126), (2490, 8662), (3660, 5893), (4260, 5063), (4331, 4980)]