19918710

素因数分解:

$2^1\times 3^5\times 5^1\times 7^1\times {\mathrm{1171}}^1$

素因数の和:1200

約数の個数: 96

約数和(自身を含む): 61431552

約数和(自身を除く): 41512842

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 81, 90, 105, 126, 135, 162, 189, 210, 243, 270, 315, 378, 405, 486, 567, 630, 810, 945, 1134, 1171, 1215, 1701, 1890, 2342, 2430, 2835, 3402, 3513, 5670, 5855, 7026, 8197, 8505, 10539, 11710, 16394, 17010, 17565, 21078, 24591, 31617, 35130, 40985, 49182, 52695, 63234, 73773, 81970, 94851, 105390, 122955, 147546, 158085, 189702, 221319, 245910, 284553, 316170, 368865, 442638, 474255, 569106, 663957, 737730, 948510, 1106595, 1327914, 1422765, 1991871, 2213190, 2845530, 3319785, 3983742, 6639570, 9959355, 19918710]

約数ペア:

[(1, 19918710), (2, 9959355), (3, 6639570), (5, 3983742), (6, 3319785), (7, 2845530), (9, 2213190), (10, 1991871), (14, 1422765), (15, 1327914), (18, 1106595), (21, 948510), (27, 737730), (30, 663957), (35, 569106), (42, 474255), (45, 442638), (54, 368865), (63, 316170), (70, 284553), (81, 245910), (90, 221319), (105, 189702), (126, 158085), (135, 147546), (162, 122955), (189, 105390), (210, 94851), (243, 81970), (270, 73773), (315, 63234), (378, 52695), (405, 49182), (486, 40985), (567, 35130), (630, 31617), (810, 24591), (945, 21078), (1134, 17565), (1171, 17010), (1215, 16394), (1701, 11710), (1890, 10539), (2342, 8505), (2430, 8197), (2835, 7026), (3402, 5855), (3513, 5670)]