19478978541

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^2\times {\mathrm{827}}^1$

素因数の和:1031

約数の個数: 72

約数和(自身を含む): 31785403104

約数和(自身を除く): 12306424563

約数列:

[1, 3, 9, 11, 33, 53, 67, 99, 159, 201, 477, 583, 603, 737, 827, 1749, 2211, 2481, 3551, 4489, 5247, 6633, 7443, 9097, 10653, 13467, 27291, 31959, 39061, 40401, 43831, 49379, 55409, 81873, 117183, 131493, 148137, 166227, 237917, 351549, 394479, 444411, 482141, 498681, 609499, 713751, 1446423, 1828497, 2141253, 2617087, 2936677, 3712403, 4339269, 5485491, 7851261, 8810031, 11137209, 23553783, 26430093, 32303447, 33411627, 40836433, 96910341, 122509299, 196757359, 290731023, 367527897, 590272077, 1770816231, 2164330949, 6492992847, 19478978541]

約数ペア:

[(1, 19478978541), (3, 6492992847), (9, 2164330949), (11, 1770816231), (33, 590272077), (53, 367527897), (67, 290731023), (99, 196757359), (159, 122509299), (201, 96910341), (477, 40836433), (583, 33411627), (603, 32303447), (737, 26430093), (827, 23553783), (1749, 11137209), (2211, 8810031), (2481, 7851261), (3551, 5485491), (4489, 4339269), (5247, 3712403), (6633, 2936677), (7443, 2617087), (9097, 2141253), (10653, 1828497), (13467, 1446423), (27291, 713751), (31959, 609499), (39061, 498681), (40401, 482141), (43831, 444411), (49379, 394479), (55409, 351549), (81873, 237917), (117183, 166227), (131493, 148137)]