21229494

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{227}}^1$

素因数の和:365

約数の個数: 64

約数和(自身を含む): 50561280

約数和(自身を除く): 29331786

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 109, 143, 218, 227, 286, 327, 429, 454, 654, 681, 858, 1199, 1362, 1417, 2398, 2497, 2834, 2951, 3597, 4251, 4994, 5902, 7194, 7491, 8502, 8853, 14982, 15587, 17706, 24743, 31174, 32461, 46761, 49486, 64922, 74229, 93522, 97383, 148458, 194766, 272173, 321659, 544346, 643318, 816519, 964977, 1633038, 1929954, 3538249, 7076498, 10614747, 21229494]

約数ペア:

[(1, 21229494), (2, 10614747), (3, 7076498), (6, 3538249), (11, 1929954), (13, 1633038), (22, 964977), (26, 816519), (33, 643318), (39, 544346), (66, 321659), (78, 272173), (109, 194766), (143, 148458), (218, 97383), (227, 93522), (286, 74229), (327, 64922), (429, 49486), (454, 46761), (654, 32461), (681, 31174), (858, 24743), (1199, 17706), (1362, 15587), (1417, 14982), (2398, 8853), (2497, 8502), (2834, 7491), (2951, 7194), (3597, 5902), (4251, 4994)]